Pastry Bros Share definition Flag The name of your friend that has dated/fucked/made out with a person you have dated/fucked/made out with. "Hey, I heard you made out with Karen at the office party last night! We're Pastry Bros now!" Pastry Bros by KyLo December 22, 2012 0 0 Get merch Get the Pastry Bros mug. Buy Now — $32.95 See more merch